1. I want to match the first four columns of my file1 to the first four columns of file2, and if there is any match, I want the matching records from input file2 whose first four columns match to the input file1. Also, I want the other records from input file2, even though there is no match to input file 1. This is the reason why you are seeing output == cat input file2.
2. My four columns are
These are separated by spaces.
3. Also, I would really appreciate if you can write into another file, the unmatched records from input file1 which would contain the following record
Hi there,
I was wondering if someone can help me with this.
I am trying the combine multiple columns from multiple files into one file.
Example file 1:
c0t0d0 c0t2d0 # hostname vgname
c0t0d1 c0t2d1 # hostname vgname
c0t0d2 c0t2d2 # hostname vgname
c0t1d0 c0t3d0 # hostname vgname1... (5 Replies)
I get the point of number subtraction in one column
awk 'NR==1 {n=$1; next}; {n-=$1} END {print n}' inputfile
but I cannot figure it out how to do this to multiple
columns.
awkward. (6 Replies)
hello,
I will would be grateful if anyone can help me reply to my post
extract multiple cloumns from multiple files; skip rows and include filenames; awk
Please see this thread.
Thanks
manishabh (0 Replies)
Hi,
I need to compare multiple columns from 2 files.
I can, for example, have these 2 files:
file1:
col1, col2, col3,col4
a,1,4,7
b,2,5,8
c,3,6,9file2:
col1, col2, col3,col4
a,2,3,2
b,5,7,5
c,1,9,8As a result, I need for example the difference between the columns 2 and 4:
col2,... (3 Replies)
Hi guys,
I have very basic linux experience so I need some help with a problem.
I have 3 files from which I want to extract columns based on common fields between them.
File1:
--- rs74078040 NA 51288690 T G 461652 0.99223 0.53611 3
--- rs77209296 NA 51303525 T G 461843 0.98973 0.60837 3... (10 Replies)
Hi,
I have multiple files that each contain one column of strings:
File1:
123abc
456def
789ghi
File2:
123abc
456def
891jkl
File3:
234mno
123abc
456def
In total I have 25 of these type of file. (5 Replies)
Hello guys, I am quite new to Shell Scripting and I need help for this
I have a CSV file like this:
Requisition,Order,RequisitionLineNumber,OrderLineNumber
REQ1,Order1,1,1
REQ1,Order1,1,3
REQ2,Order2,1,5
Basically what I want to do is compare the first 3 fields
If all 3 fields are the same... (5 Replies)
Hello Gurus,
I have a multiple pipe separated files which have records going over multiple Lines. End of line separator is \n and records going over multiple lines have <CR> as separator. below is example from one file.
1|ABC DEF|100|10
2|PQ
RS
T|200|20
3| UVWXYZ|300|30
4| GHIJKL|400|40... (7 Replies)
Discussion started by: dJHa
7 Replies
LEARN ABOUT V7
diff
DIFF(1) General Commands Manual DIFF(1)NAME
diff - differential file comparator
SYNOPSIS
diff [ -efbh ] file1 file2
DESCRIPTION
Diff tells what lines must be changed in two files to bring them into agreement. If file1 (file2) is `-', the standard input is used. If
file1 (file2) is a directory, then a file in that directory whose file-name is the same as the file-name of file2 (file1) is used. The
normal output contains lines of these forms:
n1 a n3,n4
n1,n2 d n3
n1,n2 c n3,n4
These lines resemble ed commands to convert file1 into file2. The numbers after the letters pertain to file2. In fact, by exchanging `a'
for `d' and reading backward one may ascertain equally how to convert file2 into file1. As in ed, identical pairs where n1 = n2 or n3 = n4
are abbreviated as a single number.
Following each of these lines come all the lines that are affected in the first file flagged by `<', then all the lines that are affected
in the second file flagged by `>'.
The -b option causes trailing blanks (spaces and tabs) to be ignored and other strings of blanks to compare equal.
The -e option produces a script of a, c and d commands for the editor ed, which will recreate file2 from file1. The -f option produces a
similar script, not useful with ed, in the opposite order. In connection with -e, the following shell program may help maintain multiple
versions of a file. Only an ancestral file ($1) and a chain of version-to-version ed scripts ($2,$3,...) made by diff need be on hand. A
`latest version' appears on the standard output.
(shift; cat $*; echo '1,$p') | ed - $1
Except in rare circumstances, diff finds a smallest sufficient set of file differences.
Option -h does a fast, half-hearted job. It works only when changed stretches are short and well separated, but does work on files of
unlimited length. Options -e and -f are unavailable with -h.
FILES
/tmp/d?????
/usr/lib/diffh for -h
SEE ALSO cmp(1), comm(1), ed(1)DIAGNOSTICS
Exit status is 0 for no differences, 1 for some, 2 for trouble.
BUGS
Editing scripts produced under the -e or -f option are naive about creating lines consisting of a single `.'.
DIFF(1)